Skeletor has different origin stories but the most notable is that he is an alien from a planet where everyone has a skull face or he is related to He-Man and he
Skeletor | Wiki Grayskull | Fandom
Skeletor (Character) - Comic Vine
The Secret Origin of Skeletor from He-Man and the Masters of the Universe toy line from Mattel - YouTube
Masters of the Universe: The Origin of Skeletor | DC Database | Fandom
Skeletor's Secret Origin Redefines the Entire He-Man Franchise
Masters of the Universe Origins Toy, Skeletor Villain MOTU Action FIgure
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Skeletor | Wiki Grayskull | Fandom
Masters of the Universe Origins Dragon Blaster Skeletor Action Figure